CVE Explorer

CVE-2026-25480

Litestar is an Asynchronous Server Gateway Interface (ASGI) framework. Prior to 2.20.0, FileStore maps cache keys to filenames using Unicode NFKD normalization and ord() substitution without separators, creating key collisions. When FileStore is used as response-cache backend, an unauthenticated remote attacker can trigger cache key collisions via crafted paths, causing one URL to serve cached responses of another (cache poisoning/mixup). This vulnerability is fixed in 2.20.0.

Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:77b34127c7a7258176888588ccb2c2c4d4efa1adce74a2d47fd65068906ac7bd

Known exploited

Not asserted

Disputed

Stale source

Conflicts

Affected products and versions

1 source assertion

{"product":"litestar","vendor":"litestar-org","versions":[{"status":"affected","version":"< 2.20.0"}]}

cve_program_cvelist_v5affected
urn:baitaphish:normalized-source-record:v2:53312492da6d57297ecaf6b5bfc4e5f426c40171e943bc3b23d7626f2a4be8d3 · sha256:a9a6fc0a472d726d… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion

{"metric":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":6.5,"baseSeverity":"MEDIUM","confidentialityImpact":"LOW","integrityImpact":"LOW","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N","version":"3.1"},"metric_type":"cvssV3_1"}

cve_program_cvelist_v5cvss
urn:baitaphish:normalized-source-record:v2:53312492da6d57297ecaf6b5bfc4e5f426c40171e943bc3b23d7626f2a4be8d3 · sha256:a9a6fc0a472d726d… · /containers/cna/metrics/0/cvssV3_1

CWE assertions

1 source assertion

{"cweId":"CWE-176","description":"CWE-176: Improper Handling of Unicode Encoding","lang":"en","type":"CWE"}

cve_program_cvelist_v5cwe
urn:baitaphish:normalized-source-record:v2:53312492da6d57297ecaf6b5bfc4e5f426c40171e943bc3b23d7626f2a4be8d3 · sha256:a9a6fc0a472d726d… · /containers/cna/problemTypes/0/descriptions/0

Source references

4 source assertions

{"name":"https://docs.litestar.dev/2/release-notes/changelog.html#2.20.0","tags":["x_refsource_MISC"],"url":"https://docs.litestar.dev/2/release-notes/changelog.html#2.20.0"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:53312492da6d57297ecaf6b5bfc4e5f426c40171e943bc3b23d7626f2a4be8d3 · sha256:a9a6fc0a472d726d… · /containers/cna/references/2

{"name":"https://github.com/litestar-org/litestar/commit/85db6183a76f8a6b3fd6ee3c88d860b9f37a2cca","tags":["x_refsource_MISC"],"url":"https://github.com/litestar-org/litestar/commit/85db6183a76f8a6b3fd6ee3c88d860b9f37a2cca"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:53312492da6d57297ecaf6b5bfc4e5f426c40171e943bc3b23d7626f2a4be8d3 · sha256:a9a6fc0a472d726d… · /containers/cna/references/1

{"name":"https://github.com/litestar-org/litestar/releases/tag/v2.20.0","tags":["x_refsource_MISC"],"url":"https://github.com/litestar-org/litestar/releases/tag/v2.20.0"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:53312492da6d57297ecaf6b5bfc4e5f426c40171e943bc3b23d7626f2a4be8d3 · sha256:a9a6fc0a472d726d… · /containers/cna/references/3

{"name":"https://github.com/litestar-org/litestar/security/advisories/GHSA-vxqx-rh46-q2pg","tags":["x_refsource_CONFIRM"],"url":"https://github.com/litestar-org/litestar/security/advisories/GHSA-vxqx-rh46-q2pg"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:53312492da6d57297ecaf6b5bfc4e5f426c40171e943bc3b23d7626f2a4be8d3 · sha256:a9a6fc0a472d726d… · /containers/cna/references/0

Attribution and limitations

CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →

Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.

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